It could be that the title 'Orange Marmalade' symbolizes a certain emotion, event, or character trait that is central to the plot. Or, it might simply be a catchy and unique name chosen by the creator to draw readers' attention.
In 'Orange Marmalade', the main character is a vampire. The story unfolds in a high - school setting. It shows the challenges she has to deal with. For example, hiding her true nature from others. There's a love triangle between her and two human boys. As the story progresses, they all learn about acceptance, both of the vampires among the humans and also self - acceptance for the characters themselves. It's a story full of teen angst, first love, and the fight against prejudice.
It's likely that the fictional bear you're thinking of is Paddington. He's renowned for his passion for marmalade and has many charming stories centered around it.